Police are appealing for information after it was reported that a 14-year-old boy was threatened by three youths on the number 1 bus.
The bus was traveling in the Rock Gardens area in Brighton on July 16.
The incident was reported to have occurred at around 3.25pm on a bus travelling towards Whitehawk.
There are believed to be many witnesses to the incident, and we ask anyone with information, photos or video footage to contact police.
You can make a report online, or by calling 101 quoting reference 1011 of 16/07.